Neil Gaiman has spent two years working on the TV adaptation of his and Terry Pratchett’s novel “Good Omens” and told an international TV crowd this week he dedicated himself to the task to honor a request from his friend and co-writer, who died in 2015.

“I didn’t in any real sense of the word have two years of my life to give up to make this, so I wouldn’t have done it if Terry hadn’t died and given me this as his last request,” Gaiman said. He added that “Terry’s wish trumped everything, so we were making it for him” and teased that “the very last thing that happens on the final screen of episode six is just for Terry.”

Series - Cast - Michael - Sheen - Aziraphale

The series has an all-star cast that includes Michael Sheen as earth-dwelling angel Aziraphale and David Tennant as his demon counterpart Crowley. Jon Hamm is the angel Gabriel and Benedict Cumberbatch is the voice of Satan.

Gaiman said he missed being able to call Pratchett, as he had during the writing of the book, to talk through the project as it took life. He said he had used a lot of material that the pair had discussed as going into possible sequels to the “Good Omens” novel in the TV series. “That stuff allowed us to actually solve some of the problems involved in putting it on television – the fact that we have Jon Hamm as the impossibly irritating angel Gabriel is something from the...